Smartphone screens and backs easily accumulate fingerprints, oils, and dust during daily use. Using an alcohol-based cleaner combined with high-quality dust-free wipes is a safe and effective method for cleaning, widely used in phone maintenance, repair, and daily care.

1. Cleaning Principle
Alcohol cleaners, typically 70% isopropyl alcohol with 30% deionized water, provide excellent oil removal, disinfection, and quick evaporation. Dust-free wipes made from microfiber are lint-free and gentle, minimizing scratches and static during cleaning.

2. Usage Method
Spray a small amount of alcohol cleaner onto the dust-free wipe (avoid spraying directly on the phone), then gently wipe the screen, edges, and back. Finish by wiping again with a dry dust-free wipe to remove any residue. Avoid letting alcohol enter headphone jacks or charging ports.

3. Advantages

• Scratch-resistant to screens

• Quickly removes fingerprints and oils

• Lint-free and low static to prevent secondary contamination

• Provides disinfecting effects

• Suitable for smartphones, tablets, cameras, and displays

This combination delivers efficient, low-impact cleaning ideal for daily device care.

Alcohol pre-wetted cleanroom wipes are widely used in cleanrooms, electronics manufacturing, and optical industries where high levels of cleanliness are required. Their quality directly impacts cleaning effectiveness and product safety. Therefore, testing methods for these wipes are essential and typically include the following:

1. Liquid Content Measurement
   By weighing the wipe before and after drying, the amount of alcohol or cleaning solution is determined. This ensures consistent moisture levels for optimal cleaning.

2. Particle Release Testing
   Wipes are rubbed on a standard surface inside a clean bench, and a particle counter is used to measure any released particles. This verifies compliance with cleanliness standards like ISO Class 5 (Class 100) or Class 7 (Class 10000).

3. Ion Residue Testing
   Using conductivity or ion chromatography, the wipe’s potential to leave behind ionic residues such as sodium, potassium, or chloride is measured—critical for avoiding corrosion or contamination of sensitive components.

4. Alcohol Concentration Analysis
   Gas chromatography is used to confirm the alcohol concentration, typically 70% isopropyl alcohol (IPA) and 30% deionized water. This ensures effective cleaning with quick evaporation and minimal residue.

5. Fiber Integrity Testing
   Microscopic analysis determines whether the wipe sheds fibers or deteriorates during use, which is crucial for preventing secondary contamination.

These testing methods help verify that alcohol pre-wetted cleanroom wipes meet stringent industry requirements, ensuring safe and effective cleaning in critical environments.

The automatic wiping method using dust-free wipes combined with alcohol is an efficient and clean surface cleaning technology widely used in high-precision industries such as electronics, semiconductors, and optical instruments. Its core principle lies in leveraging the low particle shedding characteristic of dust-free wipes and the strong dissolving power of alcohol to achieve dust-free and effective automated cleaning.

In the automatic wiping system, dust-free wipes are precisely moved by robotic arms or automated devices to uniformly contact the target surface. Alcohol is pre-applied or impregnated onto the wipes, utilizing its fast evaporation and strong solvent properties to effectively remove oils, dust, and fine particles without leaving watermarks or chemical residues.

The tight fiber structure of dust-free wipes minimizes fiber shedding, preventing secondary contamination during cleaning. Combined with automated control systems, the wiping process is repeatable, efficient, and stable, suitable for large-scale production needs.

This technology significantly improves cleaning quality and production efficiency, ensuring the cleanliness standards required for high-tech manufacturing.

In environments such as electronics manufacturing, precision instruments, and cleanrooms, cleaning is critical. Cleanroom wipes are designed to be lint-free and particle-free, making them ideal for use with alcohol (such as 70% isopropyl alcohol) for effective cleaning. This article explains the correct method of cleaning with cleanroom wipes and alcohol to ensure optimal cleaning results and equipment safety.

1. Preparation

• Choose cleanroom wipes that meet cleanliness standards with no dust or fiber shedding.

• Select the appropriate alcohol concentration, preferably 70% isopropyl alcohol or medical-grade ethanol, which evaporates quickly and disinfects effectively.

• Prepare a clean spray bottle or pre-wetted cleanroom wipes.

2. Cleaning Steps

• Apply Alcohol: Spray the alcohol onto the cleanroom wipe rather than directly onto the device surface to avoid liquid ingress and damage.

• Wiping Motion: Gently wipe the device surface in one direction to prevent static buildup or scratches caused by back-and-forth rubbing.

• Apply Moderate Pressure: Use enough pressure to remove dirt and oils without damaging the surface.

• Replace Wipes When Needed: For larger or heavily soiled areas, use a fresh wipe to prevent recontamination.

• Air Dry: Allow the surface to dry naturally as the alcohol evaporates.

3. Precautions

• Avoid alcohols containing chlorine or corrosive solvents to protect device surfaces.

• Ensure proper ventilation to prevent alcohol vapor buildup.

• Do not clean devices while powered on to ensure safety.

• Regularly replace wipes to maintain cleanliness.

Summary
Using cleanroom wipes combined with alcohol is an efficient and reliable cleaning method, especially suitable for electronics, optical instruments, and high-cleanliness environments. Following correct procedures and precautions significantly enhances cleaning effectiveness and prolongs equipment lifespan.

1. Key Benefits of Alcohol Lint-Free Wipes

• Effective Cleaning: 70-75% alcohol quickly dissolves grease and fingerprints

• Residue-Free: Medical-grade ethanol evaporates completely (<0.01ppm residue)

• Wide Applications: Electronics/medical devices/optical lenses

2. 4-Step Standard Operating Procedure

1. Material Selection:

   • Electronics: 99% isopropanol + Class 100 wipes

   • Medical: 75% ethanol + sterile packaging

2. Pre-Cleaning:

   • Remove large particles with air blower

3. Wiping Technique:

   • Unidirectional straight-line wiping (no circular motions)

   • Single-use per wipe side

4. Post-Cleaning:

   • Air-dry for 2 minutes

   • Inspect under white light

3. Industry-Specific Solutions

• Semiconductors:

  • ESD-safe wipes + 99% IPA

  • Post-wipe nitrogen purge

• Medical:

  • Sterile wipes + 75% ethanol

  • Follow WHO hand hygiene protocols

4. Five Critical Don’ts

⚠️ Never spray alcohol directly (apply to wipe first)
⚠️ Never reuse wipe surfaces
⚠️ Never clean powered equipment
⚠️ Avoid acrylic/polycarbonate surfaces
⚠️ Never use in confined spaces

5. Troubleshooting

• Hazing: Switch to chromatographic-grade alcohol

• Fiber Shedding: Use laser-edged wipes

• Poor Cleaning: Pre-clean with ultrapure water

1. Filtration Mechanism of Lint-Free Wipes

• Material Structure:

  • Ultra-fine fiber weave (0.5-5μm pores)

  • 3D network architecture

• Filtration Principles:

  • Mechanical interception: Blocks particles (≥1μm)

  • Electrostatic adsorption: Captures sub-micron particles

2. Alcohol Filtration Feasibility

✅ Filterable Components:

• Suspended particles (metal debris/dust)

• Microorganisms (bacteria/fungi)
  ❌ Non-Filterable:

• Alcohol molecules (ethanol diameter ≈0.44nm)

• Dissolved contaminants (ionic impurities)

3. Professional Alcohol Filtration Solutions

1. Material Selection:

   • Glass fiber wipes (alcohol-resistant)

   • Multi-layer composite (pre-filter + fine-filter)

2. Operating Parameters:

   • Flow rate: <10ml/min/cm²

   • Filter area: ≥2× container diameter

4. Applications & Limitations

• Suitable Uses:

  • Lab alcohol pre-purification

  • Industrial alcohol recycling

• Prohibited Scenarios:

  • Medical-grade sterilization (requires 0.22μm membrane)

  • High-purity electronic alcohol production

5. FAQs

Q: Does filtration alter alcohol concentration?
A: No, but volatility increases (store sealed)

Q: Can wipes replace filter paper?
A: Only for coarse filtration; use membranes for precision

1. Core Features

• Cleanliness Class: ISO Class 5 compliant (≤100 particles/ft³ @ 0.5μm)

• Pre-Wetting Tech:

  • Precision solvent control (±2% deviation)

  • IPA/ethanol options (99.9% electronic/75% medical grade)

• Design:

  • Laser-cut edges (fiber shedding <0.001%)

  • Sandwich fluid reservoir (4-hour solvent activity)

2. Key Specifications

3. Advantages vs Regular Wipes

✅ Cleanliness:

• Class 100 ready vs Class 10,000 for regular wipes
  ✅ Efficiency:

• Ready-to-use vs manual wetting (30% time saved)
  ✅ Safety:

• Sterile packaging vs contamination risk

4. Typical Applications

• Chip Manufacturing: Lithography lens cleaning

• Biopharma: Aseptic filling line maintenance

• Aerospace: Satellite component assembly

5. Usage Protocol

⚠️ Operation:

• Remove outer packaging before entering cleanroom

• Unidirectional wiping only
  ⚠️ Disposal:

• Class D hazardous waste

1. Core Functions of Pre-Wetted Wipes

• Ready-to-Use: Factory-precisely moistened (±3% solvent deviation).

• Consistency: Uniform solvent distribution (CV≤5%).

• Efficiency: Saves 40% operation time vs manual wetting.

2. Technical Advantages

✅ Solvent Control:

• Nano-encapsulation extends active time (≥2 hours at 25°C).

• 50-80μm penetration depth prevents over-saturation.
  ✅ Structure:

• Sandwich design (PE layer + dual fibers) prevents leakage.

3. Comparison Chart

4. Key Applications

• Semiconductors: Wafer surface pre-cleaning.

• Medical: Surgical instrument prep (sterile ethanol).

• Display Panels: OLED mask maintenance.

5. Usage Guidelines

⚠️ Storage:

• 4-30℃ in dark (18-month shelf life unopened).
  ⚠️ Operation:

• Single-direction use only.

1. Core Advantages of Pre-Wetted Wipes

• Ready-to-Use Design:

  • Factory-precisely moistened (±3% humidity deviation)

  • Eliminates secondary contamination risks

• Performance Breakthroughs:

  • Controlled solvent penetration (50-80μm depth)

  • Adjustable evaporation rate (≥2 hours wetness at 25°C)

2. Key Technical Parameters

✅ Moistening Standards:

• Electronic grade: 99% IPA, 0.15±0.02g/dm²

• Medical grade: 75% ethanol, 0.12±0.01g/dm²
  ✅ Material Innovation:

• Sandwich-structure base (PE layer + dual-surface fibers)

• Nano-encapsulated slow-release technology

3. Comparative Advantages

4. Industry Applications

• Semiconductors: Wafer handling robot cleaning

• Display Panels: OLED evaporation mask maintenance

• Biopharma: Lyophilizer chamber sterilization

5. Usage Guidelines

⚠️ Storage:

• 4-30℃ in dark, avoid freezing

• 18-month shelf life (unopened)
  ⚠️ Operation:

• Wear nitrile gloves

• Single-use unidirectional wiping only

1. Core Value of Alcohol-Free Cleaning

• Technological Breakthrough:

  • Nano-fiber weaving technology (fiber diameter 0.1-0.3μm)

  • Plasma surface treatment reduces surface tension

• Industry Significance:

  • Eliminates “rainbow effect” caused by alcohol evaporation

  • Meets zero-contamination requirements for semiconductors/optical components

2. Three Key Technologies

✅ Material Innovation:

• Composite microfibers (polyester + nylon 6.6 blend)

• Embedded ionic liquids replace alcohol
  ✅ Process Breakthrough:

• Vacuum impregnation (liquid distribution uniformity ±2%)

• Laser micro-pores control release rate
  ✅ Verification System:

• GC-MS residue detection (LOD <0.01ppm)

• White light interferometry for surface roughness

3. Standardized Procedure

1. Pre-treatment:

   • Plasma cleaning removes static

2. Primary Cleaning:

   • Dry wiping for particle removal

3. Secondary Cleaning:

   • Pre-moistened wipes (0.2-0.5N/cm² pressure)

4. Verification:

   • Atomic Force Microscopy (AFM) inspection

4. Industry Applications

• 7nm Chip Manufacturing: Lithography lens maintenance

• Aerospace Optics: Satellite CCD sensor cleaning

• Medical Implants: Artificial joint surface treatment

5. Comparison with Traditional Methods